CN107452473B - Transformer respirator - Google Patents
Transformer respirator Download PDFInfo
- Publication number
- CN107452473B CN107452473B CN201710744217.7A CN201710744217A CN107452473B CN 107452473 B CN107452473 B CN 107452473B CN 201710744217 A CN201710744217 A CN 201710744217A CN 107452473 B CN107452473 B CN 107452473B
- Authority
- CN
- China
- Prior art keywords
- air
- air inlet
- channel
- air outlet
- oil tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000001035 drying Methods 0.000 claims abstract description 37
- 239000002274 desiccant Substances 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000012528 membrane Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformer Cooling (AREA)
Abstract
The invention discloses a transformer respirator, which solves the problem that the exhalation and inhalation channels of the existing transformer respirator are not separated, so that the gas with oil content exhaled by a transformer oil tank pollutes a drying agent through a drying cylinder; the air outlet channel is provided with an air outlet one-way valve, the circulation direction of which is from the air channel of the oil tank to the outside of the respirator, one end of the air outlet channel is communicated with the air channel of the oil tank, the other end of the air outlet channel is communicated with the outside of the respirator, and the air outlet channel is isolated from the drying agent in the drying cylinder. The air inlet channel and the air outlet channel are separated, so that the purpose that the gas with oil content exhaled by the transformer oil tank is directly discharged out of the respirator is achieved, the service life of the drying agent is greatly prolonged, the smooth air flow of the respirator is kept for a long time, and the maintenance cost is saved.
Description
Technical Field
The invention relates to transformer equipment, in particular to a transformer respirator.
Background
At present, the oil tank of high-voltage electrical equipment filled with insulating oil, such as a transformer, a reactor and the like, can cause the change of the oil level of the oil tank due to expansion caused by heat and contraction caused by cold caused by temperature change, and the pressure difference between the inside and the outside of the oil tank needs to be balanced by a respirator. At present, a breather used for a transformer oil tank is characterized in that gas exhaled by the oil tank and gas inhaled by the oil tank generally pass through a desiccant air chamber, namely, exhalate and inhale all pass through the same air passage. Because the oil tank thermal expansion, when pressure are big, contain oil content in the gas that the oil tank expired, can pollute drier in the drying air chamber and the part of installing in the drying section of thick bamboo, influence drier hydroscopic property, long-term oil pollution can cause the drier oil film to adhere to in addition, blocks up the drying section of thick bamboo, causes the oil tank to breathe unsmoothly.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to separate an inhalation route and an exhalation route of the oil tank.
The invention adopts the following technical scheme:
the transformer breather comprises a drying cylinder, an air inlet channel and an air outlet channel, wherein the air inlet channel is communicated with an air channel of an oil tank, an air inlet one-way valve with the flow direction pointing to the air channel of the oil tank from the outside of the breather is arranged on the air inlet channel, and the air inlet channel is communicated with the drying cylinder; the air outlet channel is provided with an air outlet one-way valve with the flow direction pointing to the outside of the respirator from the air channel of the oil tank, one end of the air outlet channel is communicated with the air channel of the oil tank, the other end of the air outlet channel is communicated with the outside of the respirator, and the air outlet channel is isolated from the drying agent in the drying cylinder.
Further, an air inlet filter screen plate is arranged at the bottom of the drying cylinder, an air inlet cavity is arranged above the drying cylinder, the air inlet channel comprises an air inlet pipe, the air inlet end of the air inlet pipe is arranged above the drying cylinder, and the air inlet cavity is communicated with the air inlet pipe through an air inlet one-way valve.
Further, the air outlet channel is an air outlet hollow pipe, the air outlet hollow pipe penetrates through the drying cylinder, and the air outlet end of the air outlet hollow pipe is arranged in the oil cup.
Further, the air inlet one-way valve and the air outlet one-way valve are air passage membrane type one-way valves.
Further, an electromagnetic valve is sleeved on the air inlet pipe and connected with the air inlet one-way valve.
Further, the air inlet pipe comprises a left pipe and a right pipe, and the electromagnetic valve and the air inlet one-way valve are arranged on the left pipe and the right pipe.
Further, the electromagnetic valve is connected with the air inlet one-way valve through a threaded column.
Further, a fan assembly and a heating assembly are arranged above the air inlet filter screen plate, and the heating assembly is close to the drying cylinder and is arranged above the fan assembly.
Compared with the prior art, the invention has the beneficial effects that: when the transformer oil tank sucks air, external air passes through the drying cylinder, enters the air inlet channel through the air inlet one-way valve and then enters the air channel of the oil tank; when the transformer oil tank exhales, although the air inlet channel is communicated with the air channel of the oil tank, the air with oil discharged from the air channel of the oil tank cannot enter the air inlet channel through the air inlet one-way valve, so that the air can not enter the drying cylinder to pollute the drying agent, the discharged air can only enter the air outlet channel and then is discharged to the outside, and the air outlet channel is internally provided with the air outlet one-way valve, so that the outside air cannot enter the air channel of the oil tank through the air outlet channel, and the purity of the sucked air of the oil tank is ensured. Through set up the check valve that admits air on the inlet channel, set up the check valve that gives vent to anger on the outlet channel, with inlet channel and outlet channel separation to reach the unable entering drying cylinder of taking oil content's gas that exhales of transformer tank and pollute the drier and lead to the fact drier granule caking to block up the purpose that influences the breathing, prolonged the life of drier greatly, keep the respirator air current unobstructed for a long time, saved the maintenance cost.
Drawings
FIG. 1 is a schematic diagram of a transformer respirator of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a transformer respirator of an embodiment of the present invention;
FIG. 3 is a schematic diagram of a transformer respirator of an embodiment of the present invention in an inhalation state;
fig. 4 is a schematic diagram of a transformer respirator of an embodiment of the present invention in an exhalation state.
In the figure: 10. a drying cylinder; 11. a drying agent; 12. an air inlet filter screen plate; 13. an air inlet cavity; 14. a fan assembly; 15. a heating assembly; 20. an air intake passage; 21. an air inlet one-way valve; 22. an air inlet pipe; 23. an electromagnetic valve; 24. a threaded column; 25. a left tube; 26. a right tube; 30. an air outlet channel; 31. an air outlet one-way valve; 32. an air outlet end; 40. an oil tank air passage; 50. an oil cup.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.
As shown in fig. 1, the transformer breather comprises a drying cylinder 10, an air inlet channel 20 and an air outlet channel 30, wherein the air inlet channel 20 is communicated with an oil tank air channel 40, an air inlet check valve 21 with a flow direction pointing to the oil tank air channel 40 from the outside of the breather is arranged on the air inlet channel 20, and the air inlet channel 20 is communicated with the drying cylinder 10; the air outlet channel 30 is provided with an air outlet one-way valve 31 which is in a circulation direction from the oil tank air passage 40 to the outside of the respirator, one end of the air outlet channel 30 is communicated with the oil tank air passage 40, the other end of the air outlet channel 30 is communicated with the outside of the respirator, and the air outlet channel 30 is isolated from the drying agent 11 in the drying cylinder 10.
As shown in fig. 2, 3 and 4, when the transformer oil tank sucks air, external air passes through the drying cylinder, enters the air inlet channel through the air inlet one-way valve and then enters the air channel of the oil tank; when the transformer oil tank exhales, although the air inlet channel is communicated with the air channel of the oil tank, the air with oil discharged from the air channel of the oil tank cannot enter the air inlet channel through the air inlet one-way valve, so that the air can not enter the drying cylinder to pollute the drying agent, the discharged air can only enter the air outlet channel and then is discharged to the outside, and the air outlet channel is internally provided with the air outlet one-way valve, so that the outside air cannot enter the air channel of the oil tank through the air outlet channel, and the purity of the sucked air of the oil tank is ensured. Through set up the check valve that admits air on the inlet channel, set up the check valve that gives vent to anger on the outlet channel, with inlet channel and outlet channel separation to reach the unable entering drying cylinder of the gas of taking oil content of transformer tank exhale and pollute the purpose of drier, prolonged the life of drier greatly, kept the respirator air current unobstructed for a long time, saved the maintenance cost.
The bottom of the drying cylinder 10 is provided with an air inlet filter screen plate 12, an air inlet cavity 13 is arranged above the drying cylinder 10, an air inlet channel 20 comprises an air inlet pipe 22, the air inlet end of the air inlet pipe 22 is arranged above the drying cylinder 10, and the air inlet cavity 13 is communicated with the air inlet pipe 22 through an air inlet one-way valve 21. When the oil tank inhales, external gas firstly passes through the air inlet filter screen plate 12 for preliminary filtration and then enters the drying cylinder 10, the gas which is dried and evolved by the drying cylinder 10 enters the air inlet cavity 13, then enters the air inlet pipe 22 through the air inlet one-way valve 21, the air inlet pipe 22 is connected with an oil tank air pipe, and the gas enters the oil tank air pipe.
From the structural point of view, the air outlet channel 30 is set as an air outlet hollow tube, the air outlet hollow tube is communicated with the air channel 40 of the oil tank, the air outlet hollow tube passes through the drying cylinder 10, and the air outlet end 32 of the air outlet hollow tube is arranged in the oil cup 50. The gas exhausted during the expiration of the oil tank is directly exhausted into the oil cup 50 through the air outlet hollow pipe, the oil is absorbed by the oil cup 50, the oil in the oil cup 50 is supplemented, and then the gas is exhausted into the atmosphere, and is not contacted with the desiccant 11.
The air inlet one-way valve and the air outlet one-way valve are air passage membrane type one-way valves. The gas circuit diaphragm type check valve comprises a copper plate and a silica gel diaphragm, the installation sealing effect of the copper plate is good, the fitting performance of the silica gel diaphragm is good, the larger the air pressure difference between two sides of the check valve is when in inspiration and expiration, the better the sealing effect of the single-phase valve is, and no air leakage is caused.
The air inlet pipe 22 is sleeved with an electromagnetic valve 23, and the electromagnetic valve 23 is connected with the air inlet one-way valve 21. The transformer breather can be an intelligent breather with an intelligent control system, and has the functions of fault diagnosis, fault elimination and real-time monitoring of the state of the breather. The troubleshooting includes that the desiccant 11 is heated and dehumidified, when the desiccant 11 is heated and dehumidified, the air channel 40 of the oil tank needs to be closed, and steam in the desiccant 11 is prevented from entering the air channel 40 of the oil tank, so that the electromagnetic valve 23 is arranged on the air inlet pipe 22, and when the heating and dehumidifying function is started, the air channel 40 of the oil tank is closed through the electromagnetic valve 23.
In order to accelerate the air intake efficiency, the air intake pipe 22 comprises a left pipe 25 and a right pipe 26, and the left pipe 25 and the right pipe 26 are respectively provided with an electromagnetic valve 23 and an air intake check valve 21.
The electromagnetic valve 23 is connected with the air inlet check valve 21 through the threaded column 24, so that the electromagnetic valve 23 is connected with the air inlet check valve 21 more firmly, and the electromagnetic valve 23 or the air inlet check valve 21 is prevented from loosening to influence the work of the respirator.
In order to realize the heating and dehumidifying functions of the intelligent respirator, a fan assembly 14 and a heating assembly 15 are arranged above the air inlet filter screen plate 12, and the heating assembly 15 is close to the drying cylinder 10 and is arranged above the fan assembly 14. When the heating and dehumidifying functions are started, the heating assembly 15 uniformly heats the drying agent 11, the fan assembly 14 accelerates the air flow, after the drying agent 11 is recovered to be dried and can be continuously used, the heating assembly 15 stops working, the fan assembly 14 cools the heating assembly 15 and the drying agent 11, and meanwhile, the air entering from the air inlet filter screen plate 12 can also cool the heating assembly 15, so that the respirator can be recovered to be in normal operation as soon as possible.
The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.
Claims (3)
1. The transformer breather comprises a drying cylinder and is characterized by further comprising an air inlet channel and an air outlet channel, wherein the air inlet channel is communicated with an air channel of an oil tank, an air inlet one-way valve with the flow direction pointing to the air channel of the oil tank from the outside of the breather is arranged on the air inlet channel, and the air inlet channel is communicated with the drying cylinder; the air outlet channel is provided with an air outlet one-way valve with the flow direction pointing to the outside of the respirator from the air channel of the oil tank, one end of the air outlet channel is communicated with the air channel of the oil tank, the other end of the air outlet channel is communicated with the outside of the respirator, and the air outlet channel is isolated from the drying agent in the drying cylinder; the bottom of the drying cylinder is provided with an air inlet filter screen plate, an air inlet cavity is arranged above the drying cylinder, the air inlet channel comprises an air inlet pipe, the air inlet end of the air inlet pipe is arranged above the drying cylinder, and the air inlet cavity is communicated with the air inlet pipe through the air inlet one-way valve; the air outlet channel is an air outlet hollow pipe, the air outlet hollow pipe penetrates through the drying cylinder, and the air outlet end of the air outlet hollow pipe is arranged in the oil cup; the air inlet one-way valve and the air outlet one-way valve are air passage membrane type one-way valves; the air inlet pipe is sleeved with an electromagnetic valve, and the electromagnetic valve is connected with the air inlet one-way valve; the air inlet pipe comprises a left pipe and a right pipe, and the electromagnetic valve and the air inlet one-way valve are arranged on the left pipe and the right pipe.
2. The transformer breather of claim 1, wherein the solenoid valve is connected to the air intake check valve by a threaded post.
3. The transformer respirator of claim 1, wherein a fan assembly and a heating assembly are disposed above the inlet screen panel, the heating assembly being positioned adjacent the dryer cartridge and above the fan assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710744217.7A CN107452473B (en) | 2017-08-25 | 2017-08-25 | Transformer respirator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710744217.7A CN107452473B (en) | 2017-08-25 | 2017-08-25 | Transformer respirator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107452473A CN107452473A (en) | 2017-12-08 |
| CN107452473B true CN107452473B (en) | 2024-04-12 |
Family
ID=60493618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710744217.7A Active CN107452473B (en) | 2017-08-25 | 2017-08-25 | Transformer respirator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107452473B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101928990B1 (en) * | 2018-06-12 | 2018-12-13 | 주식회사 케이엘티 | Air breather device |
| CN108547805B (en) * | 2018-06-22 | 2023-08-29 | 高先乐 | Oil tank breather and oil tank |
| CN109003789A (en) * | 2018-08-01 | 2018-12-14 | 湖北科技学院 | A kind of transformer breather of automatic dehumidifying |
| CN109036795A (en) * | 2018-09-30 | 2018-12-18 | 宁波力测电力科技有限公司 | A kind of Maintenance-free respirator of for transformer |
| WO2021032671A1 (en) * | 2019-08-16 | 2021-02-25 | Gridinspect Gmbh | Dehumidifying device for a transformer |
| CN115342561A (en) * | 2022-08-16 | 2022-11-15 | 重庆大学 | Dehumidification device, system and method for large-scale air conditioner refrigerant system |
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| CN106373726A (en) * | 2016-10-31 | 2017-02-01 | 陕西金源自动化科技有限公司 | Temperature control switching maintenance-free moisture absorber with dual drying chambers longitudinally arranged |
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| CN107452473A (en) | 2017-12-08 |
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Address after: 310000 6 storeys, 7 blocks, No. 1418-41, Moganshan Road, Hangzhou City, Zhejiang Province Applicant after: HANGZHOU KELIN ELECTRIC Co.,Ltd. Address before: 310000 No. 1418-15, Moganshan Road, Hangzhou City, Zhejiang Province Applicant before: HANGZHOU KELIN ELECTRIC Co.,Ltd. |
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